package com.example.controller;

import com.example.entity.User;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.web.bind.annotation.*;
import springfox.documentation.annotations.ApiIgnore;

import java.util.*;

/**
 * Created by admin on 2018/6/4.
 */
@RestController
@RequestMapping("/user")
public class UserController {

    // 创建线程安全的Map
    static Map<Long, User> users = Collections.synchronizedMap(new HashMap<Long, User>());

    @ApiOperation(value="用户列表", notes="获取用户列表")
    @ApiImplicitParams({
        @ApiImplicitParam(name = "limit", value = "每页显示记录数", required = true, dataType = "Integer"),
        @ApiImplicitParam(name = "page", value = "当前页", required = true, dataType = "Integer")
    })
    @RequestMapping(value="/", method= RequestMethod.GET)
    public List<User> getUserList(Integer limit, Integer page) {
        // 处理"/users/"的GET请求，用来获取用户列表
        // 还可以通过@RequestParam从页面中传递参数来进行查询条件或者翻页信息的传递
        List<User> r = new ArrayList<User>(users.values());
        return r;
    }

    @ApiIgnore
    @ApiOperation(value="新增用户", notes="新增用户")
    @ApiImplicitParam(name = "user", value = "新增用户详细实体user", required = true, dataType = "User")
    @RequestMapping(value="/", method=RequestMethod.POST)
    public String postUser(@ModelAttribute User user) {
        // 处理"/users/"的POST请求，用来创建User
        // 除了@ModelAttribute绑定参数之外，还可以通过@RequestParam从页面中传递参数
        users.put(user.getId(), user);
        return "success";
    }

    @RequestMapping(value="/{id}", method=RequestMethod.GET)
    public User getUser(@PathVariable Long id) {
        // 处理"/users/{id}"的GET请求，用来获取url中id值的User信息
        // url中的id可通过@PathVariable绑定到函数的参数中
        return users.get(id);
    }

    @RequestMapping(value="/{id}", method=RequestMethod.PUT)
    public String putUser(@PathVariable Long id, @ModelAttribute User user) {
        // 处理"/users/{id}"的PUT请求，用来更新User信息
        User u = users.get(id);
        u.setName(user.getName());
        u.setAge(user.getAge());
        users.put(id, u);
        return "success";
    }

    @GetMapping(value="/success")
    public String success() {
        return "success";
    }

    @GetMapping(value="/warn")
    public String failed() {
        return "fatal";
    }
}
